Insulator



May 31, 1932 MONTANDON 1,861,316

msunwgn Filed .my 9, 1926 Patented May 31, 1932 UNITED STATES PATENT OFFICE ARTHUR MONTANDON, F PARIS, FRANCE, ASSIGNOR 0F ONE-HALF TO SOCIETE GENERALE DENTREPRISES AU MAROC, OF PARIS, FRANCE INSULATOR Application led July 9, 1926, Serial No. 121,432, and in France February 17, 1926.

It has been observed that in the case of electric power lines which are exposed to sea spray or mist containing a large proportion of salt, the insulators become rapidly1 coated 5 with a layer of saline substance which tends to reduce their insulating properties, thus offering prejudice to the general insulation of the line.

My invention, in which this disadvantage obviated, is charzu'terized by the fact that 2G acteristics and advantages ot the invention,

one form ot the device according to my i nvention is disclosed in the following description with reference to the appended drawing which is given by way of example, the said device being applied to the known insulators of the Hewlett type.

As shown in the drawing, the ring l is disposed above the insulator Q, and it thus forms one wall ot a recipient in which oil may be disposed as far as a level which is determined according to the inclination assumed by the chain during the oscillations ot the device. The upper edge 3 of the said ring` extends inwardly in such manner as to allow for the 5 insertion of the iron fitting t through an opening of a much smaller diameter than that of the insulator itself. This flange 3 has the form of a frustum the apex of which is situated outside the insulator. In the transverse portion of the insulator there are provided two curved channels 5 and 6 crossing each other end forming the passage for the U- shaped strain elements such as 7.

To prevent rain water from entering the oil recipient to an excessive degree, I may dispose an insulator 8 of the hood type of suitable diameter above the said recipient, the said insulator bein situated in the chain.

The insulating ring may be formed in one with the insulator or may be separately secured thereto.

Having thus described my apparatus, what I claim as new therein, and my own inven tion, is:

Il. In an aerial insulator for high tension electric lines, a hollow body made of an insulating material provided with a bottom, a cylindrical peripherie wall and an inturned edge around the upper periphery of the said wall, an insulating liquid in the said hollow body and suspending means attached to the center of the bottom of the hollow body.

:2. In an aerial insulator for high tension electric lilies, a. hollow body madeot an in sulating material provided with a bottom, a cylindrical peripherie wall and a cone-shaped inturned edge around the upper periphery ot the said Wall, an insulating liquid in the said hollow body and suspending means attached to the center of the bottom of the hollow body.

In testimony whereof I have hereunto aitixed my signature.

ARTHUR MONTANDON. 

